11117554856 has 32 divisors (see below), whose sum is σ = 21164054760. Its totient is φ = 5474045952.

The previous prime is 11117554801. The next prime is 11117554859. The reversal of 11117554856 is 65845571111.

It can be written as a sum of positive squares in 4 ways, for example, as 5060045956 + 6057508900 = 71134^2 + 77830^2 .

It is not an unprimeable number, because it can be changed into a prime (11117554859) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 366776 + ... + 395928.

Almost surely, 2^11117554856 is an apocalyptic number.

It is an amenable number.

11117554856 is a deficient number, since it is larger than the sum of its proper divisors (10046499904).

11117554856 is a wasteful number, since it uses less digits than its factorization.

11117554856 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29885 (or 29881 counting only the distinct ones).

The product of its digits is 168000, while the sum is 44.

The spelling of 11117554856 in words is "eleven billion, one hundred seventeen million, five hundred fifty-four thousand, eight hundred fifty-six".